1. Product Overview

• Part Number: 5437-080

• Manufacturer: Woodward, USA

• Product Type: NetCon Block Connection Relay Field Terminal Module

• Matching System: Woodward 505 / 505E / NetCon Turbine Governor Control System

• Function: Relay signal isolation, field wiring terminal distribution, switching signal conversion & safety interlock interface; connects 505 control logic to field relay, trip, alarm and interlock circuits; integrates 37-pin backplane communication and screw terminal field wiring.

2. General Specifications

• Supply Voltage: 24 VDC ±10% (powered by 5437-077 system power supply)

• Connector: 37-pin D-sub backplane interface + screw field terminals

• Mounting: DIN rail / panel fixed installation

• Protection Class: IP20

• Operating Temperature: -40 ℃ to +70 ℃

• Storage Temperature: -45 ℃ to +85 ℃

• Humidity: 5%–95% RH, non-condensing

• Vibration Resistance: 10–150 Hz, 2G continuous

• Weight: Approx. 0.21 kg

• Certifications: CE, UL, Class 1 Div 2 Hazardous Location

• Warranty: 12 months factory standard

3. Electrical Parameters

• Electrical Isolation: 1500 VDC controller-field side full isolation

• Discrete Signal: 24 VDC sink/source type, 300 mA maximum per channel

• Relay Contact Rating: 250 VAC / 30 VDC, resistive load

• Surge Protection: Built-in TVS protection for all external signal lines

• Common Mode Rejection: ≥60 dB @ 50/60 Hz

• Response Delay: ≤5 ms switching signal transmission

• Backplane Link: High-speed serial communication with 505 CPU module

4. Key Features

• Specialized relay interlock & trip signal terminal for turbine safety control

• Integrated signal filtering, isolation and anti-interference circuit

• Standard 37-pin matching, fully compatible with 5437-076/079 series modules

• Compact rugged structure, adaptable to harsh power plant environments

• Independent channel isolation, avoids cross interference between trip and alarm signals

• Easy field wiring, convenient maintenance and fault troubleshooting

• Supports turbine overspeed trip, valve interlock, unit protection logic signal transmission

5. Typical Applications

• Steam/gas turbine overspeed emergency trip signal terminal

• Unit safety interlock, alarm switching signal relay conversion

• 505 governor system field relay loop wiring centralized arrangement

• Power plant turbine control cabinet trip & protection signal isolation interface

• Petrochemical turbine-compressor unit safety logic field terminal matching